How to Send Secure Encrypted Email
A blog post by Cyber Search.
Understanding Email Encryption
In today's digital age where cyber threats loom at every corner, securing your email communication is of utmost importance. Encryption serves as the main defense in protecting sensitive information sent over email. Email encryption works by converting the data into a code before it travels across the internet, preventing unauthorized parties from reading the content, even if they intercept it. There are several methods such as Public Key Infrastructure (PKI), Secure/Multipurpose Internet Mail Extensions (S/MIME), and Pretty Good Privacy (PGP).
Choosing the Right Encryption Tool
Before you can start sending encrypted emails, you need to choose an encryption tool that works best for you. There are various tools and plugins available. Some email service providers include built-in encryption capabilities, but in cases where the service lacks encryption support, third-party tools like ProtonMail or Tutanota can be used. These services ensure that your emails are encrypted end-to-end, meaning they can only be read by you and your recipient.
Implementing Encryption
Once you have an encryption tool, the next step is to set it up. For instance, to use S/MIME or PGP, you need to create a pair of keys - a public key and a private key. You share your public key with anyone you want to receive encrypted emails from; they will use it to encrypt the message only you, with your private key, can decrypt and read. It's important to protect your private key and never share it with anyone.
Sending Your First Encrypted Email
With your encryption in place, you can now compose an email. If you're using a service like ProtonMail, the process is straightforward – just write your email and hit send, knowing that it will automatically encrypt. For tools like S/MIME or PGP, you might need to manually select the option to encrypt the message before sending. Always verify that you have the recipient's public key before sending an encrypted email to ensure they can decrypt and read your message.
Staying Safe with Encryption
Encrypting your emails is a great habit, but remember that email encryption only covers the content of your messages. Be mindful of secure passwords, avoid phishing scams, and consider using a VPN for additional security layers. Upkeep of your digital security practices is as important as initiating them.